Temperature-changing appliance



y H. A. CUMFER 1536479 TEIPERATURE CHANGING APPLIAIIUE Filed may 15.1922 2 sums-sunt z IIII QH fui@ *M im Patented May 5, 1925.

UNITED STATES PATENT oFFlcE.

HARRY A. CUMFER, OF CHICAGO, ILLINOIS, ASSIGNOR T-*'.,=GUYTON @L CUMFER.MFG. '00., A CORPORATION OF ILLINOIS.

TEMPERATURE-CHANGING APPLIANCE.

Application-filed May 15, 1922. Serial N'o. 561,235.

To all whom t may concern:

Be it known that I, HARRY CUMFER, a citizen of the United States,residing at Ohicago, in the county of .Cook and State of lspecification.

This inventlon relates to temperature changing appliances.

It will be explained as applied to amachine used in the manufacture yofprepared roofing, papers and the like.

In the manufacture of prepared sheet roofing,'for example, it iscustomary to impregnate a fibrous base and to apply thereto coatings' ofasphaltum and similar compounds and mixtures. Many of these materialsshould be applied hot to give satisfactory results and it is oftendesirable to raise or maintain the sheet base at temperatures aboveordinary atmospheric tempera.- tures. Also it is koften desirable torather quickly lower the temperature to keep the applied compounds andmixtures from flowing over or ofi' the surface of the sheet. Thenecessary maintenance or changes 1n ternperature are ordinarily obtainedby passing the sheet upon the surfaces of cooled or heated rolls.

One of the objects of this invention is to provide an improvedtemperature changing appliance.-

Another object is to provide a roll with heating and coolingattachments.

Another object is to provide a fluid heated roll wherein the fluidvapors or gases are effectively conducted away and can not escape intothe operating room.

Another object is to provide heating and cooling apparatus which issimple, reliable, efficient and relatively inexpensive.

Another object is to provide for the ready circulation of a cooling orheating mediumJ Within and through a roll. i

Other objects and advantages will hereinafter appear. y

Embodiments of the invention adapted for both heating and cooling areillustrated in the accompanying' drawings, wherein- Fig. 1 is an endelevation of a part of a machine such as used in the'lnanufacture ofprepared roofing and showing'two heating or cooling rolls.

Fig. 2 is a side elevation.

this invention.

Fig. 3 is a partial section of a roll, showing an attachment especiallyadapting it for cooling purposes.

Fig. t is an enlarged section of an attachment which may be used witheither a heating or a cooling roll.

Fig. 5 is an enlarged section of the discharge apparatus for a coolingroll s uch as shown in Fig. 3.

The drawings do not show the parts of the machine for applyingimpregnating and coating material since they form no part of The heatingand cooling rolls withl which this invention is shoivn incorporated mayor may not be an integral part of the coating and impregnating machineryas desired. f

A pair of cooling or heating rolls 1 and 2 are supported and journaledin suitable bearings carried by framework pedestals 3 and 4. The sheetmaterial 5 to be subjected to the heating or cooling effect of the rollsmay pass under roll 1 and over roll 2 as shown in Fig. 1. Rolls 1 and 2are driven in vthe proper direction to feed the sheet, by any suitablesource of power acting through a counter shaft 6 and a gear train 7Ordinarily both rolls will be arranged for either cooling or heatingpurposes. However, merely for the purpose of illustrating the featuresof the invention roll 1 is arranged especially for cooling the sheet androll 2 for either cooling or heating the Sheet. Fig. 3 shows the generalcharacter of both rolls land 2. The roll comprises a generally.cylindrical drum 8 of metal or other suitable material. If the roll isfor cooling purposes and water is to be the cooling agent, its wallsordinarily should be Water-tight. If the roll is for heating purposesand steam a.nd'hot' vvater'are to be the heating agents, its wallsordinarily should be steam and Water-tight. A

The ends of the drum may be closed by similar suitable heads 9. yBothheads 9may `have an opening at the center so that the heating or coolingmedium maybe injected and withdrawn from either end of the roll. Theopening in one head is closed by a suitable trunnion 10 which serves torotatably support one end of the roll in the bearings of the frameworkand to carry the roll driving gear Wheel of the gear train. 'I

When the roll is for cooling purposes only,' the other end of the drummay have a trunnion sleeve 11 secured thereto by suitable means, such asbolts 12. The inner end of trunnion sleeve 11 has an annular flange 13which tightly fits against and Within a boss around the opening in thedrum head. Suitable packing may be used if necessary.

Trunnion sleeve 11 supports the opposite end of the roll in theframework bearings and serves as a fiuid inlet and outlet for the roll.An inlet pipe '14 passes loosely through the bore of trunnion 11,extending downwardly toward an o posite corner on the inside. of thedrum. The outer end of pipe 14 may be connected to any suitable sourceof cold water supply. The water passes through pipe 14 and out of itsinner '1 end to the interior of the roll, cooling the walls thereof' bycarrying the heat away. The outer end of trunniou sleeve 11 has somewhatfunnel shaped outlet 15 secured thereto by suitable means such as bolts16. Outlet 15 projects into a housing or outlet chamber 17 which issecured to the framework by a bracket 18. Housing 17 has a boss 19through which pipe 14 projects and by which the pipe may be rigidlysupported. The pipe may be kept from being turned by the body of waterwithin the roll by a set screw 20. The opening in the inner wall ofhousing 17, being large enough to receive the iared end of outlet 15,maybe sufficiently closed at the bottom by a removable gutter 21 toprevent the water from overflowing.

' A waste pipe 22 may be tapped into housing 17 to take away the water.

The roll is thus equipped for the continuous supply, circulation andwithdrawal of the cooling medium. The axial outlet serves to maintainthe drum about half full of the cooling wat-er and, since the water isin the lower half of the drum. the hotter part of the water is removed.This arrangement is more efficient than the substantially full drumsheretofore ordinarily used. Where the drum is substantially filled withwater the cooler Water tends to collect at the center thereof and thecooling aci ion is greatly di- CII or rib 28. Aring 29 which is securedto a jacket tube 30 minished.

If the. drum is to be used for either cooling or heating purposes atrunnion, similar to trunnion 11, is bolted over the opening in the drumhead. 'Io the end of this trunnion a sleeve 25 is secured.. Theconnection between the trunnion and sleeve 25may be made by bolting aflange 26 to the end thereof in precisely the same way as hereinbeforedescribed for a cooling roll, so that one type 'of roll and trunnion maybe used with either connection.

Sleeve 25 is externally threaded at one end to receive a cup shapedinternally threaded nut 27. The bore of sleeve 25 is provided with aninwardly projecting annular flange On one side of flange 28 is a by aset screw 31.l On the other side of4 flange 28 is abeveled ring Abeveled and flanged ring 33 is held in the outer end of sleeve 25 by nut27. The space between the beveled ends of rings 32 and 33 is filled witha suitable compressible packing material 34.

The outer end of jacket tube 30 has an inlet and outlet housing orcoupling 35, connected thereto.j Coupling 35 has an inlet chamber 36 towhich a supply pipe 37, leading to any suitable source of fluid heatingmedium, may be connected. An outlet Ileeve 25 and nut 27 rotate with theroll. rIube 30, however, is held stationaryL by coupling 35 andconsequently inlet pipe 40 is held against rotation. The packing boxprovided by sleeve 25, rings 32 and 33, nut 27 and packing 34 preventsthe escape of the heating medium, although allowing relative movementbetween tube 30, pipe 40 and sleeve 25. Separation of the parts isprevented by ring 29.

The heating or cooling medium flows through pipe 37, chamber 36 and pipe40 into the roll, and out through tube 30, chamber 38 and pipe 39 to thewaste.

This type 0f coupling may be used for either a heating or a coolingroll. It is particularly adapted for heating rolls since the steam,vapor and other gases which may be given off bythe heating medium areconfined within the circulating system and can not escape into the room.The inlet is jacketed by the outlet so that the heat loss is reduced.

Having described `my invention what I claim as new 'and desire to securebyA Letters Patent, is

A structure of the character described comprising a pair of .verticalvframe members; a pair of hollow drums rotatably mounted on the frame,one above the other; means for driving one drum; connecting means todrive the other drum in the same direction; a hollow trunnion supportingone end of each drum; a relatively fixed pipe extending into eachtrunnion, said pipes for connection to the same source of supply; anddrainpipes connected to said trunnions for connection to a common drainconduit.

In testimony whereof I hereunto subscribed` my naine.

HARRY A. CUMFEIL

